46 citations · 160 across the 11 of their papers we have counts for
11 papers
Application of a magnetic-field-induced transition in Fe X to solar and stellar coronal magnetic field measurements
Yajie Chen, Wenxian Li, Hui Tian +3
Magnetic fields play a key role in driving a broad range of dynamic phenomena in the atmospheres of the Sun and other stars. Routine and accurate measurements of the magnetic field…
Measurements of the magnetic field strengths at the bases of stellar coronae using the magnetic-field-induced transition theory
Yajie Chen, Xianyu Liu, Hui Tian +6
Measurements of the magnetic field in the stellar coronae are extremely difficult. Recently, it was proposed that the magnetic-field-induced transition (MIT) of the Fe X 257 Å line…
Forward Modeling of Solar Coronal Magnetic Field Measurements Based on a Magnetic-field-induced Transition in Fe X
Yajie Chen, Wenxian Li, Hui Tian +6
It was recently proposed that the intensity ratios of several extreme ultraviolet spectral lines from the Fe X ion can be used to measure the solar coronal magnetic field based on…
A first spectroscopic measurement of the magnetic field strength for an active region of the solar corona
Ran Si, Tomas Brage, Wenxian Li +3
For all involved in astronomy, the importance of monitoring and determining astrophysical magnetic field strengths is clear. It is also a well-known fact that the corona magnetic f…
Hinode/EIS measurements of active region magnetic fields
E. Landi, R. Hutton, T. Brage +1
The present work illustrates the potential of a new diagnostic technique that allows the measurement of the coronal magnetic field strength in solar active regions utilizing a hand…
On the Fine Structure Splitting of the 3p43d 4D5/2 and 3p43d 4D7/2 Levels of Fe X
Philip Judge, Roger Hutton, Wenxian Li +1
We study UV spectra obtained with the SO82-B slit spectrograph on board SKYLAB to estimate the fine structure splitting of the Cl-like 3p4 3d 4D J=5/2 and 3p4 3d 4D J=7/2 levels of…
A Novel Method to Determine Magnetic Fields in low-density Plasma e.g. Solar Flares Facilitated Through Accidental Degeneracy of Quantum States in Fe
Wenxian Li, Jon Grumer, Yang Yang +8
We propose a new method to determine magnetic fields, by using the magnetic-field induced electric dipole transition $3p^5\, ^2\mathrm{P}…
Tungsten spectroscopy in the EUV observed in SH-HtscEBIT
Wenxian Li, Zhan Shi, Yang Yang +4
We have recorded extreme ultraviolet spectra from to ions using a new flat field spectrometer installed at the Shanghai high temperature super…
Investigation of M1 transitions of the ground-state configuration of In-like Tungsten
W. Li, J. Xiao, Z. Shi +6
Three visible lines of M1 transitions from In-like W were recorded using the Shanghai permanent magnet electron beam ion trap. The experimental wavelengths were measured as 493.84…
Coronal lines and the importance of deep core-valence correlation in Ag-like ions
Jon Grumer, Ruifeng Zhao, Tomas Brage +4
We report on large-scale and critically evaluated {\em ab initio} MCDHF calculations of the wavelength of the "coronal", M1 transition $4f\ ^2\mathrm{F}_{5/2}^o-^2\mathrm{F}_{7/2}^…
The effect of an external magnetic field on the determination of E1M1 two-photon decay rates in Be-like ions
Jon Grumer, Wenxian Li, Dietrich Bernhardt +6
In this work we report on ab initio theoretical results for the magnetic field induced 2s2p ^3P_0 - 2s^2 ^1S_0 E1 transition for ions in the beryllium isoelectronic sequence betwee…